Fiber grating is one of the most important sensors for optical fiber communication. The fiber coating has none effectively transparent at 248nm when etching the fiber grating by phase mask method, and need to remove the coating and re-coated which is complicate and time-consuming. The fiber grating would be damaged, and affected the strength and the sensitivity. In this paper, the traditional UV- curable optical fiber coatings, based on the redesign of the resin by optimizing the molecular structure and syn...